I see the more and more pool providers are introducing automatic pool switching based on current profitability. Hell, I was even toying with the idea of doing it for my pools at
http://ispace.co.ukThen it dawned on me that it makes no sense .... when an alt coin is more profitable than BTC for a very short time, a mass of hashing power is pointed at it and simply drives up the difficulty and results in it being less profitable. Also, if the coin is only more profitable for a short time it has to be sold immediately which drives down the price on the exchanges, again making it less profitable.
Those that do not sell immediately then end up holding coins worth less than if they had just mined BTC.
In my opinion, people should do their own research and invest their hashing power in quality coins they feel are actually or could be worth something and not just blindly follow the crowd. This would build up better coin communities and a more stable marketplace.